Chuck.



T. J. FEG'LY s. s. 0.LE0P0LD.

' CHUCK.- K

' APPLI'CATzIoN FILED ANov1 19. 19.4.

' Patented Mayet, 1915.

2 SHEETS-SHEET 2.

Unirse snr-rains 1 entire.'

THOMAS J. FEGLEXA'ND GEORGE ic. Lnoiaonn, or PHILADELEHIA, rENNsYLvsii-n, AssieNons To Non'rn Bnos Mre oo., .or rHLAnnLPHiA, PENNSYLVANIA, A

. CORPORA'IION`OF PENNSYLVANIA.

Licence.

CHUCK.

Patentes May a, isis.

Application led November 19, 1914. Serial No'. 872,962.

To @ZZ whom t mai] 'conc-ern.'

Beit known .that we, 'THOMAS J. F EGLEY and GEORGE 0- LEOPOLD, citizens ofthe United States, and residentsl of Philadelphia, county of Philadelphia, Stateof Pennsylf Vania, have invented certain VImprovements in Chucks', of which the following is a speciication.

"Jiur, linvention relates to certain improvementsyin'a` chuck forholding tools and other pieces firmly in drill and ,lathe spindles, al-

'though it can be used as a chuck` for hand tools; or Lin-any place where `it is desired to rigidlyyattach one article to another.

I view; Fig. 5 is a true longitudinal-sectional.

'The object ofthe invention -is to design ,the chuck so that a' notched tool will be held by a cross bar, which can be moved out of engagement with the toolby-a longitudinal movement', of an element carrying the bar.

The invention also relates -to details of construction which will be fully described I hereinafter.

In the accompanying drawings:. Figure 1 'is a side-viewof our improved chuckgFig.v

2 is a Vlongitudinal sectional View; Fig.a3 is a `transverse sectional view on'the line oi-a,v Fig. 2,; Fig/1 is a sectional-`plan View on theline b-Z), Fig. 4; Fig-6 is a detached'fperspective-view, showing the body portion, sleeve, and vcross bar1detached`;.Fig. 7 is a sectional view of'a modification, showing the use of a-plain straight 'bar;` Fig. 8 is. av perspective view. of thebarillustrated 1n -Fig. 7; Fig.v 9 is' atransverse sectional view, showing the straight bar and the'sleeve modification'"illustrated in Fig. i 11 and adapted to the same type .ofdrill asy that illustrated in`-Fig..1; andFig. 13 is aper-v spective View lof V.the operating. sleeve. used in the modification illustrated in Figsfv 11' and' 12. f' v Referring to Figs. -l to 6, inclusive, of the drawings, 1 is the body portion of the chuck whichfis adapted to the spindle 2 in any suitablel manner. lIn' tl 1^e 'present instance, the spindle has astem v3 lwhich extends into the body portion 1 andthe end lfiof thish stem is stepped so as' to receive the` stepped end of the drill bit 5. This stem is driven 1nto the body portion and may be further secured in any manner found desirable. The

bit 5 has a notch@ into which extends 'a cross bar 7 which holds the bit inthe chuck'. In

the bodyportion l is an inclined slot 8,

. shaped as clearly shown in Fig. 6, andthe tion 1 is a sleeve 9 having a transverse slot 10 of a width to. receive the lcross bar 7. The ends 111` of the: cross bar are turned down so as to rest in the slot 10, as shown in Figs. 2 and 3, thus holding the cross bar to. hold the'barin the. bottom of the slot 8. 17 is a casing which vincloses the sleeve 9 andthefspring 16 and has an' inti1rned iange'18 at"the forward end whichextends over the rigidly in positionas regards lateralmoveend ofthe sleeve 9. This ian'ge is prevented i from moving outward by. a. collar 19 forcedv l onto the end of the body-portion 1,.as-illus-- trated in Fig.2. Thusthe casing 17 iszfree to turn on the chuck, but,A on retracting the casing it-will alsol retract the sleevefand compress the springlf, forcing the bar 7 out of engagement with the bit 5; `On releas-- ing the casingtlie `spring 16 vwill force' the sleeve forward and this sleeve will carry with it the ba'r so that the bar will .be forced bodyportion'` and when the bit 5 is in posi- .into the lower portion of the slot 8 of the A tion theba'r-will enter-the notch 6 in the bit y and will: hold 1 the :bit in 'position n in l thechuck.: By making the (Azaslligvl loose,l as shown, it'v forms a hand hold forthe tool when thev operator is reciprocating the ment that 'rotates the-tool.

In Fig ..7 and. 8, wefhave 'its vless in depth than that illustrated inl'Fig." 6, iid

and the bar is heldlongitudinally in this instance by the casing 17a.

In Figi), We have illustrated a modification of the form of chuck illustrated in Fig.

l 7, in which the sleeve has abutments 20,

which extend at each end of the cross bar 7b, retaining it in the longitudinal position.

ln Fig, 10, we have illustrated a type in which one oi' the convolutions of the spring 16h forms the cross bar 7C. the sleeve 9 is narrouT and the rear end ot' the sleeve bears against the rst convolution transverse pin 30. Mounted on the stembe tween the collar 21 andthe rear end of the body portion 1a is a loose section 22 having ,an external thread thereon and the casing 17b is 'extended and'has a raised portion 23, which meshes with the threads of the loose section 22. In vthis case, as above remarkech the casing r17D not only extends over the sleeve 9d, but also extends rearwardly .over

the lspindle 2a, as the construction illustrated in Fig. 11 is used in connectionf'with the push drill in Which a long actuating sleeve .35 -24 moves longitudinally between the casing 17b andthe spindle 2 so as to rotate Vthe spindle. This portion ofthe tool is com mon in thejart. The sleeve 9d has, at its outer end, an external `liange so that. on grasping the flange the sleeve can be pushed back to force the trod 7 out of engagement 'Withthe spindle. The spring 16C, in this instance,is .short and isshaped 4as clearly illus tongue 26 onthe sleeve which isv pressed ontoythe Hat. surface of the body portion.

In Fig. 12,v We have illustrated the chuck shown inv Fig. 11 having a shortcasing 17, Whichvextends over the spring andla porf tion of the sleeve 9?* and is held from moving vlongitudinally b v a flanged screw. plug 27, which is screWedinto-the end 0f the body portion 1b.

the body portion having an inclined. slot. to `receive the bar and a sleeve movinglongitudinally. on the body portion for shifting the' bar into and out ofengagement with the bit or other element vmounted in the chuck.

We-claim': f 1. The-combination in a chuck, of a body y portion having an opening for a tool bit, or y. a? other-device,and having apdiagonal, trans- In this instance,

tratcd infFig. VThe'sleeve 9d is prevent ed fromA turning. on the body portion 1a by a` `The essential feature of the invention is f verse slot communicating with the central opening; alocking bar mounted vin the 'slot and arranged to engagea toolbit,`o'r other device, to. be held in the chuck; and' means for moving the bar into and-out of position in the slot.

2. The combination in a chuck, of a body portion having an opening therein for a bit, or other article to be secured Ithereto, and having a transverse diagonal slot; a bar mounted in the slot; and a sleeve longitudinally movable on the body portion and engaging the bar so that, when the sleeve is moved, the bar Will be forced out 'of engage ment with the bit, or other device, located in thebody portion.

3. The combination in a body portion having an opening for thereception of a bit, or other device,l and having a diagonal slot communicating With the said opening;

'a sleeve mounted on the body portion and having a transverse slot; a locking bar eX- tending through both slots; and a-spring -mounted on the body portion and bearing against a shoulder thereon and against the vsleeve and tending to. hold the bar in the portion; a bar extending through both slots;

a spring' back of the sleeve tending to force the sleeve forward andthe bar into the diagonal slotto its full depth so as to enter a notclrin thev bit located in the bodyportion; vand means for preventing thesleeve from turning in the body portion. y

5.The ,combination of a body portion havinga.longitudinal opening therein and anteirtrpal shoulder and having a diagonal slot extending forwardly 'and communicatd ingv with the longitudinal opening; a sleeve mounted on the body portion and having a transverse slot; a' transverse bar having the 115 ends turned lat right angles to the body of the bar, said ends being located in the transverse slot of the sleeve; and a spring located between the shoulder on'the body portion and the sleeve.

` .6. The'combination in a chuck, of a body portion having a longitudinal opening therein for the bit and having a transverse, inclined. slot communicating with the longitudinal openingend having a flattened portion and a shoulder; a sleeve arranged to slide longitudinally on. the body portion and having a transverse slotymeans engaging said flattened portion for preventing the sleeve turningbn the body portion;a bar 'usenet .u f mounted'in tbe slot `ott tbebodyportion and Y in thesotofthe sleevegajsprin mounted betweenl .the vshoulder on the .bo and thefsleeve; and a 'casing covering Ithe portsfnd-"en'gaging thev sleeve so that on moving thev .casing longituditmtlyv the bar portion vvillbe fol-.ced back against the pressure of transverseslot and a collar at its outer end;

a eross bnr mountedv inthe slot and arranged tovengage e bit located in the opening of thejbody patiente-sleeve mounted on the body portion and engaging the bar; a spring I tending yto force thefsleeve'and bar in one direction; 'and an 'inclosing casing letzt-ving` en nturned ange at its outer end extending between the outer end of the sleeve and' the collar at the end ofthe body portion.

'En testimony whereof, We have signed our names toths'specicaton, in thepresence of two subscrlbmg Wltnesses. Y

THOMAS et. nnGLnY.

enonen o. Lnononn. 

